new champ idea

new champ idea dont have a name yet Q: hide in shadows upon activation turn invisible for 10(at level one ) and 20 (at level 5) seconds while in stealth you gain a movement speed buff of 10-20% based of level of ability W: dagger toss upon activation throw a dagger in a direction (its a skill shot) that deals damage to the first unit hit if you are in stealth at the time this abillity becomes targeted while losing 1/3 of its range E: cripple the weak upon activation throw out a skillshot in target direction that slows the first champion hit if that champion is already slowed or is not with any allies the slow becomes doubled and deals a small amount of damage R: flurry of death upon activation dash to a target area(this should have a long range ) and release blades in an area around you as you travel after reaching the area you targeted you gain a 5 seconds stealth buff and a movement speed buff of 50 (not percent just flat) passive: every 10 minion kills you gain 3% of you max health and 4% of you max mana back if the 10th kill is on a champion this effect is doubled thats my idea yeah